<template>
	<view>
		<view class="uni-header">
			<view class="uni-group">
				<view class="uni-title"></view>
				<view class="uni-sub-title"></view>
			</view>
			<view class="uni-group">
				<input class="uni-search" type="text" v-model="query" placeholder="用户/内容" />
				<button class="uni-button" type="default" size="mini" @click="search">搜索</button>
			</view>
		</view>
		<view class="uni-container">
			<unicloud-db
				ref="udb"
				:collection="collectionName"
				:options="options"
				:where="where"
				page-data="replace"
				:orderby="orderby"
				:getcount="true"
				:page-size="options.pageSize"
				:page-current="options.pageCurrent"
				v-slot:default="{ data, pagination, loading, error }"
			>
				<uni-table :loading="loading" :emptyText="error.message || '没有更多数据'" border stripe>
					<uni-tr>
						<uni-th align="center">序号</uni-th>
						<uni-th align="center">用户</uni-th>
						<uni-th align="center">内容</uni-th>
						<uni-th align="center">IP</uni-th>
						<uni-th align="center">时间</uni-th>
					</uni-tr>
					<uni-tr v-for="(item, index) in data" :key="index">
						<uni-td align="center">{{ (pagination.current - 1) * pagination.size + (index + 1) }}</uni-td>
						<uni-td align="center">{{ item.user_name }}</uni-td>
						<uni-td align="center">{{ item.content }}</uni-td>
						<uni-td align="center">{{ item.ip }}</uni-td>
						<uni-td align="center"><uni-dateformat :date="item.create_date" :threshold="[0, 0]" /></uni-td>
					</uni-tr>
				</uni-table>
				<view class="uni-pagination-box">
					<uni-pagination show-icon :page-size="pagination.size" v-model="pagination.current" :total="pagination.count" @change="onPageChanged" />
				</view>
			</unicloud-db>
		</view>
	</view>
</template>

<script>
const db = uniCloud.database();
// 表查询配置
const dbCollectionName = 'opendb-admin-log';
const dbOrderBy = 'create_date desc'; // 排序字段
const dbSearchFields = ['user_name', 'content']; // 支持模糊搜索的字段列表
// 分页配置
const pageSize = 20;
const pageCurrent = 1;

export default {
	data() {
		return {
			query: '',
			where: '',
			orderby: dbOrderBy,
			collectionName: dbCollectionName,
			options: {
				pageSize,
				pageCurrent
			}
		};
	},
	methods: {
		getWhere() {
			const query = this.query.trim();
			if (!query) {
				return '';
			}
			const queryRe = new RegExp(query, 'i');
			return dbSearchFields.map(name => queryRe + '.test(' + name + ')').join(' || ');
		},
		search() {
			const newWhere = this.getWhere();
			const isSameWhere = newWhere === this.where;
			this.where = newWhere;
			if (isSameWhere) {
				// 相同条件时，手动强制刷新
				this.loadData();
			}
		},
		loadData(clear = true) {
			this.$refs.udb.loadData({
				clear
			});
		},
		onPageChanged(e) {
			this.$refs.udb.loadData({
				current: e.current
			});
		},
		navigateTo(url) {
			uni.navigateTo({
				url,
				events: {
					refreshData: () => {
						this.loadData();
					}
				}
			});
		},
		// 多选处理
		selectedItems() {
			var dataList = this.$refs.udb.dataList;
			return this.selectedIndexs.map(i => dataList[i]._id);
		},
		//批量删除
		delTable() {
			this.$refs.udb.remove(this.selectedItems());
		},
		// 多选
		selectionChange(e) {
			this.selectedIndexs = e.detail.index;
		},
		confirmDelete(id) {
			this.$refs.udb.remove(id);
		}
	}
};
</script>
<style></style>
